20XX is a roguelike action platformer that you can play with a friend. Jump and shoot your way through ever-changing levels, collect awesome new powers, and battle mighty bosses in the name of saving the human race maybe!
All Reviews:
Very Positive (1,552) - 94% of the 1,552 user reviews for this game are positive.
Release Date:
Aug 16, 2017

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Includes 2 items: 20XX, 20XX Soundtrack

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Recent updates View all (84)

August 23

20XX 1.00.4 Patch Notes - August 23rd, 2017

Hello! Today's 20XX patch improves netplay performance, adds ultrawide support, and fixes the Fox Only achievement.

Note: I'm going to be out of town from Friday, Aug 25 through Saturday, Sept 9th on a PAX-plus trip. I'll have limited access to internet for support, but it's not super likely that 20XX gets patched over that period, other than showstopper bugs I'm able to fix on the road.


  • Netplay performance improvements! We've tightened up how 20XX's netcode handles certain kinds of data - the result should be fewer drops of data you care about, and better overall performance (especially on lower end machines).
  • Ultrawide support! We compromised on this. Ultrawide should now work properly up to 21:9, but will be black-barred to 16:9 in Challenges. (Your UI'll still be drawn outside the game view.)

  • Fixed a bug that'd prevent the Fox Only achivement from triggering.
  • (edit, Aug 24) Fixed a very specific case where a certain sequence could cause framerate drops in online co-op with one player dead.

  • 20XX's online multiplayer doesn't play super well with alt-tabbing from fullscreen. We'll address this in a future patch, but the testing burden involved is a little too heavy for the time I have in the next few weeks.
24 comments Read more

August 21

20XX 1.00.3 Patch Notes - August 21, 2017

Hello! Today's 20XX patch makes a few tweaks to level 9, and continues to fix bugs found by our surge of players since launch.



  • Level 9 tweaks:
    • Our goal here is to preserve the challenge of completing each individual challenge-set in Level 9 while making it a little more accessible on Normal/Reverent. Particularly on Normal, the player will still have to complete the exact same caliber of challenges as before this patch, but they'll have a little more leeway in doing so. We'll see how folks feel after this change set. Whether or not you felt L9 needed some tweaking, let us know how you feel about this! We're being super careful not to overshoot here.
    • On Reverent Mode, level length reduced by 25%. Level length unchanged in all other play modes.
    • Added many more crate/machine opportunities to Level 9, so they'll come more than once in a blue moon. On Defiant and in Challenges, these crates/machines spawn much less frequently (50% less likely, which is still more crates than currently spawn by a good bit).
    • Platforming difficulty unchanged in all modes.
    • The level 9 boss' "Astral Orb" ability no longer deals contact damage (so players only need to avoid the beam it creates). Astral Orb move speed also reduced.
  • Glory Zones now have some bad luck protection involved - at most two levels should go by without one popping up. Statistically, this results in about one extra Glory Zone every two runs.
  • Alpha/Beta Arkors attack rate as Soul Foes reduced. Gamma Arkors attack rate as Soul Foes increased slightly (10%, up from 0%).
  • Taste the Rainbow no longer requires that the player also have Mixmatch Mastery. (Kind of a change, kind of a bugfix.)
  • Earthmetal Plating can no longer decrease your HP below 1 when picked up (so it won't kill you).
  • Seed Racer now starts level generation at difficulty 2 (like Challenges do).
  • When 20XX closes to desktop because of a failed tileset load (if you've had CTDs loading into lategame levels, this is probably you), it'll invoke the game's Save and Quit functionality before closing (if Save and Quit is available). This means you should be able to hit "continue" as long as you only hit a one-off crash (such as failing to load a level due to insufficient memory).

  • Fixed a bug causing co-op clients to rarely have runaway platforms at the start of a level. This was usually reported on level 9, but could happen on Skytemple as well.
  • Fixed a bug causing Nut Zero to trigger with Bankrupt on if you completed a DHC that activated Bankrupt.
  • Fixed being able to get stuck in Phase Blocks after locking them with Shadespur.
  • Fixed a bug that'd occasionally cause The Volunteer to fail to convert a Scrap Recycler into a Very Safe Lab.
  • Fixed a certain boss HP bar re-appearing if you change the screen resolution.
  • Fixed an ancient bug (seriously, I think this one has been around for years) that could cause player 2 in local co-op to spawn into a run as Ace, even if the player was Nina before starting the run.
  • Decreased visual explosion density during one particular explosion-heavy section (for framerate concerns, especially on Less High). Danger level unchanged.
  • Fixed a bug that could prevent Arsenal from triggering on a given player's account. (Players with everything unlocked that don't have Arsenal should get it once they enter HQ.)
  • Corrected a few Datalore errors.

  • There are a few places text doesn't wrap correctly. We're rolling a new text renderer for our ports, and will fix these when they're done (so we can avoid doing the work twice).
  • There are a few issues relating to changing display type/resolution resulting in non-perfect results - we're working on this one, but haven't been able to fix it yet.
10 comments Read more


“It looks fantastic.”
Rock Paper Shotgun

“20XX is now one of my most anticipated games and I cannot wait to get my hands on the final version.”
Paste Magazine

“20XX Is The Mega Man X Sequel Capcom Should Have Made”
Tech Times

About This Game

If you like roguelikes or Mega Man, 20XX is for you!

20XX is a roguelike action platformer that you can play with a friend. Jump and shoot your way through ever-changing levels, collect awesome new powers, and battle mighty bosses in the name of saving the human race maybe!

20XX also features full co-op. Play with a friend on the couch or over the interwebs!

20XX supports 1-2 players locally or online via Steam. (Online play is 90% stable at this time.)

  • Crisp, precise controls - do exactly what you want your character to!
  • Over 100 mighty powerups to collect!
  • Tons of different play modes and optional difficulty modifiers!
  • Seeded Daily and Weekly Challenges!
  • All gameplay features available in both single player and co-op! (online or local)

Roguelike Elements:
  • Random levels: each time you play 20XX, the stages you play through will be brand new!
  • Permanent death: each 20XX playthrough is a self-contained life! Death sends you back to HQ, where you can buy powerful upgrades for future runs. (There's also a Reverent Mode where you get three lives to make it through the game instead of one.)
  • Persistent Upgrades: as you play 20XX, you'll earn Soul Chips, which unlock powerful Permanent Upgrades and expand the pool of items that can you can find as you play!

System Requirements

    • OS: Windows XP
    • Processor: Toaster processor or better (2009+)
    • Memory: 1024 MB RAM
    • Graphics: Any card made during or after 2009
    • DirectX: Version 9.0c
    • Storage: 1 GB available space
    • Additional Notes: Laptop users: Some laptops will default to running 20XX off of their integrated GPU (instead of your good GPU). We strongly recommend that you run 20XX on your dedicated GPU.
    • Processor: Two toaster processors or better (2011+)
    • Graphics: Something made in the last five years
    • DirectX: Version 9.0c
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